Missing test teardowns

This kept a file pointer open while trying to delete the file.

tests/test_blendfile_modification.py

@@ -17,6 +17,7 @@ class ModifyUncompressedTest(AbstractBlendFileTest):
         self.assertFalse(self.bf.is_compressed)
 
     def tearDown(self):
+        super().tearDown()
         if self.to_modify.exists():
             self.to_modify.unlink()
 

tests/test_pack.py

@@ -26,6 +26,7 @@ class AbstractPackTest(AbstractBlendFileTest):
         self.tpath = pathlib.Path(self.tdir.name)
 
     def tearDown(self):
+        super().tearDown()
         self.tdir.cleanup()
 
     @staticmethod